A step toward a clinically viable ABI phase-contrast imaging: double emission line artifacts correction

Oriol Caudevilla; Wei Zhou; Jovan G. Brankov

doi:10.1117/12.2534349

28 May 2019 A step toward a clinically viable ABI phase-contrast imaging: double emission line artifacts correction

Oriol Caudevilla, Wei Zhou, Jovan G. Brankov

Proceedings Volume 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine; 1107219 (2019) https://doi.org/10.1117/12.2534349
Event: Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 2019, Philadelphia, United States

Abstract

Analyzer-based phase–contrast imaging (ABI) is a promising X-ray imaging technique with huge potential for soft tissue imaging. Unfortunately, ABI requires quasi-monochromatic beam, which limits the beam photon budget, therefore imaging requires a long exposure time. In classical ABI imaging only one K-alpha emission line is permitted. Relaxing this requirement and even further by utilizing both K-alpha emission lines for imaging can significantly reduce the exposure time. However, accepting both emission lines introduce a double-image artifact due to the energy-angular difference between the emission lines. In this paper we introduce a method to correct for such artifacts and overcome one of the main design limitation of Analyzer-Based systems to achieve high quality phase-contrast mammograms in a clinically relevant time.

Citation Download Citation

Oriol Caudevilla, Wei Zhou, and Jovan G. Brankov "A step toward a clinically viable ABI phase-contrast imaging: double emission line artifacts correction", Proc. SPIE 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 1107219 (28 May 2019); https://doi.org/10.1117/12.2534349

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